They are great for laying out Hors d'oeuvre when hosting a party. Gives that gritty feel to the festivities. :)
Are engineers ever incorrect? Go see the video of the Tacoma Narrows bridge...
Sure we all know it's joe blow shade tree mechanics that build and run F-1 cars , engineers , who needs them , they make mistakes .
Space program , some guy in a scrap yard putting together Shuttles from scrapped Dodge Satellites , not engineers .